HP NonStop G-Series - Manual (Page 3)

Contents
About This Document...................................................................................11
Supported Release Version Updates (RVUs)................................................................................11
Intended Audience..................................................................................................................11
Unsupported Utilities...............................................................................................................11
Acknowledgment....................................................................................................................12
New and Changed Information in the 522700-005 Edition..........................................................12
New and Changed Information in the 522700-004 Edition..........................................................12
New and Changed Information in the 522700-003 Edition..........................................................13
New and Changed Information in the 522700–002 Edition.........................................................13
Document Organization..........................................................................................................13
Notation Conventions..............................................................................................................14
General Syntax Notation....................................................................................................14
Notation for Messages.......................................................................................................16
Related Information.................................................................................................................17
Publishing History...................................................................................................................19
HP Encourages Your Comments................................................................................................19
1 Introduction to Open System Services..........................................................21
OSS Components...................................................................................................................21
OSS File System.................................................................................................................21
OSS Command Interpreter (Korn Shell).................................................................................21
User Commands and Utilities...............................................................................................21
Access to HP Software .......................................................................................................22
OSS Reference Pages.........................................................................................................22
OSS and UNIX.......................................................................................................................22
OSS and the NonStop Operating System...................................................................................22
Alternative to Guardian Interface.........................................................................................23
Interoperability..................................................................................................................23
Application Development....................................................................................................23
OSS Environment....................................................................................................................24
OSS Device Support...............................................................................................................24
Printers.............................................................................................................................24
Tape Drives.......................................................................................................................24
OSS Processes ......................................................................................................................24
OSS and Open Computing Standards.......................................................................................24
XPG4 ..............................................................................................................................24
POSIX.1............................................................................................................................25
FIPS.................................................................................................................................25
POSIX.2...........................................................................................................................25
2 The OSS File System.................................................................................26
OSS Files and Filenames.........................................................................................................26
OSS Filename Length.........................................................................................................26
OSS File Types..................................................................................................................26
OSS Directories and Subdirectories...........................................................................................27
The OSS File-System Structure..............................................................................................27
The /G Directory...............................................................................................................28
The /E Directory................................................................................................................28
OSS Pathnames......................................................................................................................28
Absolute Pathnames...........................................................................................................28
Relative Pathnames.............................................................................................................29
Pathname Length................................................................................................................29
Contents 3